Explanation:
The Basic Steps of Endocytosis
The plasma membrane folds inward (invaginates) forming a cavity that fills with extracellular fluid, dissolved molecules, food particles, foreign matter, pathogens, or other substances.
The plasma membrane folds back on itself until the ends of the in-folded membrane meet. This traps the fluid inside the vesicle. In some cells, long channels also form extending from the membrane deep into the cytoplasm.
The vesicle is pinched off from the membrane as the ends of the in-folded membrane fuse together. The internalized vesicle is then processed by the cell.
Explanation:
Cuando se queman los fósiles, el carbón e hidrógeno reaccionan con el oxígeno produciendo dióxido de carbono (CO2) y agua (H2O). Durante esta reacción se produce calor. La electricidad se genera mediante la transformación de energía mecánica (calor) con energía eléctrica por medio de una turbina o generador.
Answer:
C. a whale's flipper and a cat's leg
Explanation:
Homologous structures are the organs which have same basic anatomical structure but they perform different function based on the type of environment in which the organism is living. Two organisms which have homologous organs indicate that both the organisms are evolutionarily closely related to each other i.e. their ancestry is common. It is basically divergent evolution which is responsible for formation of homologous organs. If two closely related organisms are living in different environment then their organs which basically have same origin will tend to perform different functions as a part of adaptation. In contrast to this, analogous structures are the ones which perform similar function but anatomically they are very different and evolutionarily they are not closely related. Analogous structures are evolved as a result of convergent evolution which is meant for adaptation in a particular environment. So, even if two organisms are not closely related they still develop the structures which perform similar function so as to adapt into a particular environment.
Whales and cats both are mammals so they are closely related to each other but since they live in different environment, their organs which are anatomically similar perform different functions. Flippers in whales help in swimming while cat's leg help in walking. So, option C is correct answer.
All other options are examples of analogous organs.
A bird's wings and a butterfly's wings are perfect example of analogous organs. A bird is a vertebrate while a butterfly is an arthropod so evolutionarily they are very distantly related so their wings are also anatomically very dissimilar but they still perform similar function which help these two organisms in flying. So option A is incorrect. Similarly option D is also incorrect because wasp is an arthropod while dolphin is a vertebrate. Option B is also incorrect because catfish is a vertebrate and bee is an arthropod.
Amount of food in stomach when drinking, body weight, rate of consumption, strength of alcohol.
Herpe simplex virus
Herpes simplex viruses can
also be refers to as human herpes virus 1 and 2 and these virus commonly spread
when an infected person is shredding and producing the virus. The herpes virus
is made up of double stranded linear DNA genomic enclosed within an icosahedral
protein called the capsid. Thus, there production is triggered by the development of emotional or phycological stress by the host.
